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PHP Session Fixation / Hijacking
...ed so it's not 100% reliable, but it's better than not.
Include the user's IP address from $_SERVER['REMOTE_ADDR'] in the session. Basically, when the session starts, store it in something like $_SESSION['remote_ip']. This may be problematic from some ISPs that use multiple IP addresses for their ...
TCP vs UDP on video stream
...tivity; therefore TCP is more appropriate for replaying a video-on-demand.
IP multicast significantly reduces video bandwidth requirements for large audiences; TCP prevents the use of IP multicast, but UDP is well-suited for IP multicast.
Live video is normally a constant-bandwidth stream recorded o...
How do I fix the error 'Named Pipes Provider, error 40 - Could not open a connection to' SQL Server'
...g with SERVER/INSTANCENAME when everything is configured correctly, named pipes, user access rights... and suddenly it struck me, it's not a slash, it's a backslash (\).
The horror, the shame...
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MySQL CONCAT returns NULL if any field contain NULL
...ONCAT(COALESCE(`affiliate_name`,''),'-',COALESCE(`model`,''),'-',COALESCE(`ip`,''),'-',COALESCE(`os_type`,''),'-',COALESCE(`os_version`,'')) AS device_name
FROM devices
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Permission denied (publickey) when SSH Access to Amazon EC2 instance [closed]
...out which username you should use is often lacking from the AMI Image description. But you can find some in AWS EC2 documentation, bullet point 4. :
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AccessingInstancesLinux.html
Use the ssh command to connect to the instance. You'll specify the...
How to detect the physical connected state of a network cable/connector?
...nected state of an RJ45 connector to its socket. Preferably using BASH scripting only.
14 Answers
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how to detect search engine bots with php?
...s user agent with fake name and name it like "Googlebot"? I think checking ip range is more trustworthy!
– Mojtaba Rezaeian
Jul 1 '15 at 6:39
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Difference between TCP and UDP?
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TCP is a connection oriented stream over an IP network. It guarantees that all sent packets will reach the destination in the correct order. This imply the use of acknowledgement packets sent back to the sender, and automatic retransmission, causing additional delays a...
NASM x86汇编入门指南 - C/C++ - 清泛网 - 专注C/C++及内核技术
...2. 为什么写这篇文章
3. NASM(The Netwide Assembler)汇编编译工具
3.1 为什么使用NASM？
3.2 如何安装NASM？
4. Linux汇编介绍
4.1 DOS和Linux汇编主要不同的地方
4.2 一个汇编程序的组成
4.3 linux系统调用
4.3.1 阅...
iOS开发调试技巧总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...强大呢？
【5.Analyze分析器】
Analyze分析器是一种静态的工具，可以对我们的程序进行分析，找出我们未使用的变量，或一些死存储。执行Analyze如下：Product-->Analyze. 如下蓝色的标记就是静态分析的结果。
当然，我们可以设置在...